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BlackJack
BlackJack Main Class
/**
* @(#)BlackJack.java
* BlackJack application
* Author: Brian SonniE
*/
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.util.*;
import java.io.*;
import javax.imageio.*;
public class BlackJack extends JFrame{
int cash = 0;
int currentBet = 0;
ArrayList<Card> deck;
Card[] usersCards = new Card[10];
Card[] dealersCards = new Card[10];
private JButton buttonHit, buttonStay, buttonDeal, buttonCashOut;
private JPanel userPane, dealerPane, userCardPane;
private JLabel labelMoney, labelBet;
BufferedImage img;
final int cardWidth = 79;
final int cardHeight = 123;
boolean gameOn = true;
public BlackJack() {
setTitle("BlackJack");
setSize(450,500);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new BorderLayout());
setVisible(true);
setBackground(Color.green);
buildTable();
gameInit();
repaint();
getContentPane().setBackground(Color.GREEN);
}
public void paint(Graphics g) {
super.paint(g);
g.drawString("Dealers Hand", 20, 60);
g.drawString("Your Hand", 20, 230);
g.drawString("Sum: "+getUserSum(), 90, 230);
int x1 = 10;
int y1 = 250;
int x2 = x1+cardWidth;
int y2 = y1+cardHeight;
int dx1 = 10;
int dy1 = 80;
int dx2 = dx1+cardWidth;
int dy2 = dy1+cardHeight;
// Draw Dealers Cards
for(int i = 1; i<=getNumDealerCards(); i++)
{
g.drawImage(img, dx1+(cardWidth*(i-1)), dy1, dx2+(cardWidth*(i-1)), dy2, dealersCards[i-1].getX(),
dealersCards[i-1].getY(), dealersCards[i-1].getX()+cardWidth ,dealersCards[i-1].getY()+cardHeight,null);
}
// Draw User Cards
for(int i = 1; i<=getNumUserCards(); i++)
{
g.drawImage(img, x1+(cardWidth*(i-1)), y1, x2+(cardWidth*(i-1)), y2, usersCards[i-1].getX(),
usersCards[i-1].getY(), usersCards[i-1].getX()+cardWidth ,usersCards[i-1].getY()+cardHeight,null);
}
}
public int getNumUserCards()
{
int numCards = 0;
while(usersCards[numCards]!=null)
numCards++;
return numCards;
}
public int getNumDealerCards() {
int numCards = 0;
while(dealersCards[numCards]!=null)
numCards++;
return numCards;
} public int getUserSum()
{
int numCards = 0;
int sum = 0;
int cardVal = 0;
while(usersCards[numCards]!=null){
cardVal = usersCards[numCards].getValue();
if(cardVal == 1 && sum<=10)
cardVal = 11;
else if(cardVal == 11)
cardVal = 10;
else if(cardVal == 12)
cardVal = 10;
else if(cardVal == 13)
cardVal = 10;
sum+=cardVal;
numCards++;
}
return sum;
}
public int getDealerSum() {
int numCards = 0;
int sum = 0;
int cardVal = 0;
while(dealersCards[numCards]!=null){
cardVal = dealersCards[numCards].getValue();
if(cardVal == 1 && sum<=10)
cardVal = 11;
else if(cardVal == 11)
cardVal = 10;
else if(cardVal == 12)
cardVal = 10;
else if(cardVal == 13)
cardVal = 10;
sum+=cardVal;
numCards++;
}
return sum;
}
// Recursion Implemented Check \
public int setBet(int bet)
{
try{
bet = Integer.parseInt(JOptionPane.showInputDialog("Enter Your Bet: "));
}catch(NumberFormatException ex)
{ bet=0; }
if(bet <= 0 || bet > cash)
bet=setBet(0);
else
labelBet.setText(Integer.toString(bet));
return bet;
}
public void buildTable() {
//***Dealer Pane***\
dealerPane = new JPanel();
dealerPane.setBackground(Color.gray);
buttonDeal = new JButton("Deal");
buttonCashOut = new JButton("Walk Away");
dealerPane.add(buttonCashOut);
dealerPane.add(buttonDeal);
buttonDeal.addActionListener(new Dealer());
buttonCashOut.addActionListener(new Walk());
//***UserCardPane***\
userCardPane = new JPanel();
//***UserPane***\
userPane = new JPanel(new GridLayout(3,2));
Border pancakes = BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(), "Your Money");
userPane.setBorder(pancakes);
userPane.setBackground(Color.gray);
buttonHit = new JButton("Hit");
buttonStay = new JButton("Stay");
labelBet = new JLabel("0");
labelMoney = new JLabel("0");
userPane.add(new JLabel("Your Total Monies: "));
userPane.add(labelMoney);
userPane.add(new JLabel("Your Bet: "));
userPane.add(labelBet);
userPane.add(buttonHit);
userPane.add(buttonStay);
buttonHit.addActionListener(new HitMe());
buttonStay.addActionListener(new Stay());
add(dealerPane, BorderLayout.NORTH);
add(userPane, BorderLayout.SOUTH);
// Set Starting Money
try {
img = ImageIO.read(new File("cards.png"));
} catch (IOException e) {}
cash = getStartingAmmt();
labelMoney.setText(Integer.toString(cash));
}
/**
* Code for New Round
*/
public void gameInit() {
currentBet = setBet(0);
usersCards = new Card[10];
dealersCards = new Card[10];
deck = new ArrayList<Card>(52);
for(int i = 0; i<52; i++)
deck.add(i, new Card((i%4),(i%13)+1));
// Give User and Dealer 2 Cards Each
usersCards[0] = pullRandomCard();
usersCards[1] = pullRandomCard();
dealersCards[0] = pullRandomCard();
dealersCards[1] = pullRandomCard();
repaint();
}
public int getStartingAmmt() {
int amnt = 0;
while(amnt<=0)
{
try{
amnt = Integer.parseInt(JOptionPane.showInputDialog("Enter Starting Ammount of Money:"));
}catch(NumberFormatException nfe){ amnt=0; }
}
return amnt;
}
public Card pullRandomCard()
{
Random rand = new Random();
return deck.remove(rand.nextInt(deck.size()));
}
//*********************EVENTS*******************\
/** Deal
* Recreate The deck
* Give dealer and user 2 cards
*/
class Dealer implements ActionListener{
public void actionPerformed(ActionEvent ae)
{
gameOn = true;
gameInit();
}
}
/** Hit Me
* Draw a random card from the deck
* Check the new sum of cards
* if 21 user wins
* if > 21 user losses
* if < 21 user can choose to hit/stay
*/
class HitMe implements ActionListener{
public void actionPerformed(ActionEvent ae)
{
if(gameOn){
usersCards[getNumUserCards()] = pullRandomCard();
repaint();
if(getUserSum()>21)
{
// You Lose
JOptionPane.showMessageDialog(null, "You Lost...");
gameOn = false;
cash-=currentBet;
labelMoney.setText(Integer.toString(cash));
}
if(cash<=0)
{
JOptionPane.showMessageDialog(null,"You broke...");
System.exit(0);
}
}
}
}
/**
* Check for winner
*/
class Stay implements ActionListener{
public void actionPerformed(ActionEvent ae)
{
if(gameOn){
gameOn = false;
if(getUserSum()>21)
{
// You Lose
JOptionPane.showMessageDialog(null, "You Lost...");
cash-=currentBet;
labelMoney.setText(Integer.toString(cash));
}
// Ai
else {
while(getDealerSum()<17)
{
dealersCards[getNumDealerCards()] = pullRandomCard();
}
if(getDealerSum()>21)
{
// You Win
JOptionPane.showMessageDialog(null, "You Win!!");
cash+=currentBet;
labelMoney.setText(Integer.toString(cash));
}
else{
if(21-getUserSum() < 21-getDealerSum())
{// You win
JOptionPane.showMessageDialog(null, "You Win!!");
cash+=currentBet;
labelMoney.setText(Integer.toString(cash));
}
else if(getUserSum() == getDealerSum())
{
JOptionPane.showMessageDialog(null, "Tie...");
}
else // You Lose
{
JOptionPane.showMessageDialog(null, "You Lost...");
cash-=currentBet;
labelMoney.setText(Integer.toString(cash));
}
}
}
repaint();
if(cash<=0)
{
JOptionPane.showMessageDialog(null,"You broke...");
System.exit(0);
}
}
}
}
/**
* Leav App
*/
class Walk implements ActionListener{
public void actionPerformed(ActionEvent ae)
{
JOptionPane.showMessageDialog(null, "You played and walked away with $" + cash);
System.exit(0);
}
}
public static void main(String[] args) {
new BlackJack();
}
}
Card.class
public class Card {
private int cardValue;
private int cardSuit;
public Card()
{
cardValue = 0;
cardSuit = 0;
}
public Card(int suit, int val)
{
cardValue = val;
cardSuit = suit;
}
public void setValue(int val)
{
cardValue = val;
}
public void setSuit(int suit)
{
cardSuit = suit;
}
public int getValue()
{
return cardValue;
}
public int getSuit()
{
return cardSuit;
}
public int getY()
{
return 123*cardSuit;
}
public int getX()
{
return 79*(cardValue-1);
}
}
Output
